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A GPWS activation confirms that an air carrier pilot's feeling that something is not right is correct. An arc approach to an ILS is being incorrectly flown.
| Attributes | |
| ACN | 497659 |
| Time | |
| Date | 200101 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : svc.vortac |
| State Reference | NM |
| Altitude | msl single value : 9400 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Beech 1900 |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | ils localizer only : 26 Other other vortac |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 250 flight time total : 1400 flight time type : 300 |
| ASRS Report | 497659 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | aircraft equipment : gpws other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
A new captain, who was very nervous, chose the approach for us to do, the captain briefed the approach. I (the PF) did not brief the approach. The captain vectored me for the arc. Once established on the arc, I realized something was not right. A few seconds later, the GPWS activated. I executed a climb and turned towards the VOR. The captain vectored me the wrong direction. We came from the north and the captain read the plate as if we were coming from the south. The captain never spoke of the occurrence. A couple of contributing factors were lack of communication and PF not briefing the approach.
Original NASA ASRS Text
Title: A GPWS ACTIVATION CONFIRMS THAT AN ACR PLT'S FEELING THAT SOMETHING IS NOT RIGHT IS CORRECT. AN ARC APCH TO AN ILS IS BEING INCORRECTLY FLOWN.
Narrative: A NEW CAPT, WHO WAS VERY NERVOUS, CHOSE THE APCH FOR US TO DO, THE CAPT BRIEFED THE APCH. I (THE PF) DID NOT BRIEF THE APCH. THE CAPT VECTORED ME FOR THE ARC. ONCE ESTABLISHED ON THE ARC, I REALIZED SOMETHING WAS NOT RIGHT. A FEW SECONDS LATER, THE GPWS ACTIVATED. I EXECUTED A CLB AND TURNED TOWARDS THE VOR. THE CAPT VECTORED ME THE WRONG DIRECTION. WE CAME FROM THE N AND THE CAPT READ THE PLATE AS IF WE WERE COMING FROM THE S. THE CAPT NEVER SPOKE OF THE OCCURRENCE. A COUPLE OF CONTRIBUTING FACTORS WERE LACK OF COM AND PF NOT BRIEFING THE APCH.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.